<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>单位:em</title>
		<style>
			.magnifier{
				position: relative;
				color: dodgerblue;
				/* 改变font-size值大小可控制整体放大倍数 */
				font-size: 5px;
			}
			.lens{
				position: absolute;
				width: 10em;
				height: 10em;
				border: 1em solid;
				border-radius: 50%;
			}
			.handle{
				position: absolute;
				width: 2em;
				height: 10em;
				border-radius: 0 0 1em 1em;
				background-color: currentcolor;
				left: 10em;
				top: 10em;
				transform: rotate(-45deg);
				transform-origin: top;
			}
		</style>
	</head>
	<body>
		<figure class="magnifier">
			<div class="lens"></div>
			<div class="handle"></div>
		</figure>
	</body>
</html>
